﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace demo3
{
    class UDisk:Disk,IUsb
    {
        public UDisk(string brand) : base(brand) { }
        public void read()
        {
            Console.WriteLine("u盘正在读取数据中");
        }

        public void write()
        {
            Console.WriteLine("u盘正在写入数据中");
        }
    }
}
